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Experimental study of submerged liquid metal jet in a rectangular duct in a transverse magnetic field

Published online by Cambridge University Press:  06 December 2022

Ivan A. Belyaev*
Affiliation:
Joint Institute for High Temperature RAS, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia Moscow Power Engineering Institute, Krasnokazarmennaya 14, 111250 Moscow, Russia
Ivan S. Mironov
Affiliation:
Joint Institute for High Temperature RAS, Izhorskaya 13 Bd. 2, 125412 Moscow, Russia
Nikita A. Luchinkin
Affiliation:
Moscow Power Engineering Institute, Krasnokazarmennaya 14, 111250 Moscow, Russia
Yaroslav I. Listratov
Affiliation:
Moscow Power Engineering Institute, Krasnokazarmennaya 14, 111250 Moscow, Russia
Yuri B. Kolesnikov
Affiliation:
Technische Universitat Ilmenau, PF 100565, 98684 Ilmenau, Germany
Dmitry Kransov
Affiliation:
Technische Universitat Ilmenau, PF 100565, 98684 Ilmenau, Germany
Oleg Zikanov
Affiliation:
University of Michigan-Dearborn, Dearborn, MI 48128-1491, USA
Sergei Molokov
Affiliation:
Technische Universitat Ilmenau, PF 100565, 98684 Ilmenau, Germany
*
Email address for correspondence: bia@ihed.ras.ru

Abstract

A liquid metal flow in the form of a submerged round jet entering a square duct in the presence of a transverse magnetic field is studied experimentally. A range of high Reynolds and Hartmann numbers is considered. Flow velocity is measured using electric potential difference probes. A detailed study of the flow in the duct's cross-section about seven jet's diameters downstream of the inlet reveals the dynamics, which is unsteady and dominated by high-amplitude fluctuations resulting from the instability of the jet. The flow structure and fluctuation properties are largely determined by the value of the Stuart number ${{N}}$. At moderate ${{N}}$, the mean velocity profile retains a central jet with three-dimensional perturbations increasingly suppressed by the magnetic field as ${{N}}$ grows. At higher values of ${{N}}$, the flow becomes quasi-two-dimensional and acquires the form of an asymmetric macrovortex, with high-amplitude velocity fluctuations reemerging.

Type
JFM Papers
Copyright
© The Author(s), 2022. Published by Cambridge University Press

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